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000058849 084__ $$2WoS$$aPlant Sciences
000058849 084__ $$2WoS$$aCell Biology
000058849 1001_ $$0P:(DE-HGF)0$$aZimmermann, D.$$b0
000058849 245__ $$aFoliar water supply of tall trees: evidence for mucilage-facilitated moisture uptake from the atmosphere and the impact on pressure bomb measurements
000058849 260__ $$aWien$$bSpringer$$c2007
000058849 300__ $$a11 - 34
000058849 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000058849 440_0 $$018302$$aProtoplasma$$v232$$x0033-183X
000058849 500__ $$aRecord converted from VDB: 12.11.2012
000058849 520__ $$aThe water supply to leaves of 25 to 60 m tall trees (including high-salinity-tolerant ones) was studied. The filling status of the xylem vessels was determined by xylem sap extraction (using jet-discharge, gravity-discharge, and centrifugation) and by (1)H nuclear magnetic resonance imaging of wood pieces. Simultaneously, pressure bomb experiments were performed along the entire trunk of the trees up to a height of 57 m. Clear-cut evidence was found that the balancing pressure (P(b)) values of leafy twigs were dictated by the ambient relative humidity rather than by height. Refilling of xylem vessels of apical leaves (branches) obviously mainly occurred via moisture uptake from the atmosphere. These findings could be traced back to the hydration and rehydration of mucilage layers on the leaf surfaces and/or of epistomatal mucilage plugs. Xylem vessels also contained mucilage. Mucilage formation was apparently enforced by water stress. The observed mucilage-based foliar water uptake and humidity dependency of the P(b) values are at variance with the cohesion-tension theory and with the hypothesis that P(b) measurements yield information about the relationships between xylem pressure gradients and height.
000058849 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000058849 588__ $$aDataset connected to Web of Science, Pubmed
000058849 650_2 $$2MeSH$$aAdhesives: metabolism
000058849 650_2 $$2MeSH$$aAtmosphere: chemistry
000058849 650_2 $$2MeSH$$aDehydration
000058849 650_2 $$2MeSH$$aGlycosaminoglycans: metabolism
000058849 650_2 $$2MeSH$$aGravitation
000058849 650_2 $$2MeSH$$aMagnetic Resonance Spectroscopy
000058849 650_2 $$2MeSH$$aPlant Leaves: cytology
000058849 650_2 $$2MeSH$$aPlant Leaves: physiology
000058849 650_2 $$2MeSH$$aPressure
000058849 650_2 $$2MeSH$$aTrees: cytology
000058849 650_2 $$2MeSH$$aTrees: physiology
000058849 650_2 $$2MeSH$$aWater: metabolism
000058849 650_2 $$2MeSH$$aXylem: physiology
000058849 650_7 $$00$$2NLM Chemicals$$aAdhesives
000058849 650_7 $$00$$2NLM Chemicals$$aGlycosaminoglycans
000058849 650_7 $$07732-18-5$$2NLM Chemicals$$aWater
000058849 650_7 $$2WoSType$$aJ
000058849 65320 $$2Author$$aH-1 nuclear magnetic resonance imaging
000058849 65320 $$2Author$$apressure bomb
000058849 65320 $$2Author$$amucilage
000058849 65320 $$2Author$$acohesive water
000058849 65320 $$2Author$$aepistomatal plug
000058849 65320 $$2Author$$areverse transpiration
000058849 7001_ $$0P:(DE-HGF)0$$aWesthoff, M.$$b1
000058849 7001_ $$0P:(DE-HGF)0$$aZimmermann, G.$$b2
000058849 7001_ $$0P:(DE-HGF)0$$aGeßner, P.$$b3
000058849 7001_ $$0P:(DE-HGF)0$$aGessner, A.$$b4
000058849 7001_ $$0P:(DE-HGF)0$$aWegner, L. H.$$b5
000058849 7001_ $$0P:(DE-HGF)0$$aRokitta, M.$$b6
000058849 7001_ $$0P:(DE-HGF)0$$aAche, P.$$b7
000058849 7001_ $$0P:(DE-Juel1)129397$$aSchneider, H.$$b8$$uFZJ
000058849 7001_ $$0P:(DE-HGF)0$$aVásquez, J. A.$$b9
000058849 7001_ $$0P:(DE-HGF)0$$aKruck, W.$$b10
000058849 7001_ $$0P:(DE-HGF)0$$aShirley, St.$$b11
000058849 7001_ $$0P:(DE-HGF)0$$aJakob, P.$$b12
000058849 7001_ $$0P:(DE-HGF)0$$aHedrich, R.$$b13
000058849 7001_ $$0P:(DE-HGF)0$$aBentrup, F.-W.$$b14
000058849 7001_ $$0P:(DE-HGF)0$$aBamberg, E.$$b15
000058849 7001_ $$0P:(DE-HGF)0$$aZimmermann, U.$$b16
000058849 773__ $$0PERI:(DE-600)1463033-3$$a10.1007/s00709-007-0279-2$$gVol. 232, p. 11 - 34$$p11 - 34$$q232<11 - 34$$tProtoplasma$$v232$$x0033-183X$$y2007
000058849 8567_ $$uhttp://dx.doi.org/10.1007/s00709-007-0279-2
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